2.4 You wish to design a plant to produce 100 tons/day of ethylene glycol from ethane, air, and water. The plant has three reactor stages, ethane dehydrogenation, ethylene oxidation, and ethylene oxide hydration. (a) What are the reactions? (b) Both dehydrogenation and hydration have nearly 100% selectivity (with recycle of unreacted reactants), but ethylene to ethylene oxide has only 70% selectivity with an old catalyst and 90% selectivity with a new and expensive catalyst. How many tons/day of ethane do we need to supply to this plant with each of these catalysts? (c) Ethylene to EO has a heat of reaction of 25 kcalfmole, and the undesired byproducts are exclusively CO2 and H2O. [You can look up the heat of combustion of ethylene.] What is the rate of heat removal in watts with the two catalysts? (d) If all this heat is used to produce low-pressure steam (from 25C at 1atm ), approximately how many tons of steam per day can be produced? (e) Could the heat from this reaction be used to provide heat in the other two reactions? Where else could it be used? (f) Sketch a flow diagram of this plant including reactors and separation units